4. Telephonic communications
  5. Line equalization or impedance matching

Yonghua Fang

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Method for selecting impedance setting for loop start trunk...

Telephonic communications – Line equalization or impedance matching
Reexamination Certificate

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Method of selecting impedance setting for loop start trunk line

Telephonic communications – Line equalization or impedance matching
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3020613

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